Trace number 1784498

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
precosat 236UNSAT 2.48362 2.48525

General information on the benchmark

NameCRAFTED/parity-games/
instance_n5_i6_pp_ci_ce.cnf
MD5SUM2cb95a73fc66a1c6328b2127a33b0a14
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.72874
Satisfiable
(Un)Satisfiability was proved
Number of variables4380
Number of clauses31980
Sum of the clauses size102772
Maximum clause length20
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 27508
Number of clauses of size 313398
Number of clauses of size 47973
Number of clauses of size 53006
Number of clauses of size over 595

Solver Data 

0.00/0.00	c PicoSATLight Version 236 3e7a3f8825c0b9e241f38a63fee5517540b2feca
0.00/0.00	c Copyright (C) 2009, Armin Biere, JKU, Linz, Austria.  All rights reserved.
0.00/0.00	c Released on Sun Mar 22 10:16:26 CET 2009
0.00/0.00	c Compiled on Tue Mar 24 21:24:39 CET 2009
0.00/0.00	c g++ (GCC) 4.3.2 20081105 (Red Hat 4.3.2-7)
0.00/0.00	c -O3 -m32 -static -Wall -Wextra -DNDEBUG -DNLOGPRECO -DNSTATSPRECO
0.00/0.00	c -finline-limit=10000000 -fomit-frame-pointer -fno-exceptions
0.00/0.00	c Linux baghera 2.6.27.19-170.2.35.fc10.i686.PAE i686
0.00/0.00	c
0.00/0.00	c reading HOME/instance-1784498-1241948465.cnf
0.00/0.00	c found header 'p cnf 4380 31980'
0.01/0.03	c finished parsing
0.01/0.03	c
0.01/0.03	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.01/0.03	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.01/0.03	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.01/0.03	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.01/0.03	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.01/0.03	c --random=1 --spread=2000 --seed=0 --skip=25
0.01/0.03	c
0.01/0.03	c sizeof     vars[0] = 16   alignment = 0       0 MB
0.01/0.03	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.01/0.03	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.01/0.03	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.01/0.03	c
0.01/0.03	c starting search after 0.0 seconds
0.01/0.03	c no decision limit
0.01/0.03	c
0.01/0.03	c       original/binary      fixed     eliminated      learned       agility
0.01/0.03	c   seconds        variables     equivalent    conflicts       height       MB
0.01/0.03	c
0.01/0.03	c *    0.0    31854    3434     90   856      0       0      0    0.0   0    2
0.19/0.25	c -    0.3    28851    2666    408  1306      0       0   1000    0.0   0    3
0.39/0.46	c s    0.5    20414    1826    408  1306    840       0      0    0.0   0    2
0.39/0.46	c l    0.5    20414    1826    408  1306    840       0  13631    0.0   0    2
0.39/0.48	c R    0.5    20426    1826    408  1306    840     102    102   16.2  15    2
0.39/0.49	c R    0.5    20426    1826    408  1306    840     203    203   25.7  17    2
0.49/0.53	c R    0.5    20445    1826    408  1306    840     806    802   20.3  18    2
0.49/0.55	c B    0.6    20464    1826    408  1306    840    1001    997   19.0  17    2
0.59/0.66	c B    0.7    20488    1826    408  1306    840    2002   1992   18.1  19    2
0.69/0.71	c R    0.7    20489    1826    408  1306    840    2412   2401   17.4  23    2
0.89/0.95	c s    1.0    20518    1826    408  1306    840    4232   4215   16.2  21    2
1.29/1.30	c R    1.3    22032    1825    409  1306    840    6426   6402   15.2  17    3
1.49/1.52	c B    1.5    22430    1825    409  1306    840    8003   7979   15.4  24    3
1.59/1.64	c s    1.6    22394    1825    409  1306    840    8773   8728   15.4  17    3
2.39/2.48	c 0    2.5    37321     882   1292  1366    840   13296  13226   14.1  18    4
2.39/2.48	c
2.39/2.48	s UNSATISFIABLE
2.39/2.48	c
2.39/2.48	c 13296 conflicts, 23066 decisions, 1 random
2.39/2.48	c 5 iterations, 60 restarts, 2 skipped
2.39/2.48	c 0 enlarged, 1425 shrunken, 129 rescored, 8 rebiased
2.39/2.48	c 3 simplifications, 0 reductions
2.39/2.48	c
2.39/2.48	c vars: 1292 fixed, 1366 equiv, 840 elim, 1525 merged
2.39/2.48	c elim: 137214 resolutions, 1 phases, 1 rounds
2.39/2.48	c sbst: 55% substituted, 0.0% nots, 100.0% ands, 0.0% xors, 0.0% ites
2.39/2.48	c arty: 2.20 and 0.00 xor average arity
2.39/2.48	c prbe: 16979 probed, 3 phases, 3 rounds
2.39/2.48	c prbe: 317 failed, 37 lifted, 26 merged
2.39/2.48	c sccs: 0 non trivial, 0 fixed, 0 merged
2.39/2.48	c hash: 53 units, 1499 merged
2.39/2.48	c mins: 218285 learned, 46% deleted, 3 strong, 37 depth
2.39/2.48	c subs: 2102 forward, 3238 backward, 15161 doms
2.39/2.48	c strs: 922 forward, 842 backward
2.39/2.48	c doms: 16039 dominators, 12345 high, 202 low
2.39/2.48	c prps: 3442814 propagations, 1.39 megaprops
2.39/2.48	c
2.39/2.48	c 2.5 seconds, 4 MB max, 1 MB recycled

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1784498-1241948465/watcher-1784498-1241948465 -o /tmp/evaluation-result-1784498-1241948465/solver-1784498-1241948465 -C 5000 -W 6000 -M 1800 HOME/precosat HOME/instance-1784498-1241948465.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.88 0.97 0.99 3/64 29810
/proc/meminfo: memFree=1592352/2055920 swapFree=4164048/4192956
[pid=29810] ppid=29808 vsize=1324 CPUtime=0
/proc/29810/stat : 29810 (precosat) R 29808 29810 29372 0 -1 4194304 226 0 0 0 0 0 0 0 18 0 1 0 222874532 1355776 211 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/29810/statm: 331 211 64 155 0 174 0

[startup+0.021869 s]
/proc/loadavg: 0.88 0.97 0.99 3/64 29810
/proc/meminfo: memFree=1592352/2055920 swapFree=4164048/4192956
[pid=29810] ppid=29808 vsize=2380 CPUtime=0.01
/proc/29810/stat : 29810 (precosat) R 29808 29810 29372 0 -1 4194304 487 0 0 0 1 0 0 0 18 0 1 0 222874532 2437120 472 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/29810/statm: 595 473 64 155 0 438 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2380

[startup+0.101875 s]
/proc/loadavg: 0.88 0.97 0.99 3/64 29810
/proc/meminfo: memFree=1592352/2055920 swapFree=4164048/4192956
[pid=29810] ppid=29808 vsize=4120 CPUtime=0.09
/proc/29810/stat : 29810 (precosat) R 29808 29810 29372 0 -1 4194304 942 0 0 0 9 0 0 0 18 0 1 0 222874532 4218880 926 1992294400 134512640 135151029 4294956240 18446744073709551615 134554746 0 0 4096 17442 0 0 0 17 1 0 0
/proc/29810/statm: 1030 926 79 155 0 873 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4120

[startup+0.301892 s]
/proc/loadavg: 0.88 0.97 0.99 3/64 29810
/proc/meminfo: memFree=1592352/2055920 swapFree=4164048/4192956
[pid=29810] ppid=29808 vsize=4616 CPUtime=0.29
/proc/29810/stat : 29810 (precosat) R 29808 29810 29372 0 -1 4194304 1111 0 0 0 29 0 0 0 19 0 1 0 222874532 4726784 1034 1992294400 134512640 135151029 4294956240 18446744073709551615 134519566 0 0 4096 17442 0 0 0 17 1 0 0
/proc/29810/statm: 1154 1034 79 155 0 997 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4616

[startup+0.701928 s]
/proc/loadavg: 0.88 0.97 0.99 3/64 29810
/proc/meminfo: memFree=1592352/2055920 swapFree=4164048/4192956
[pid=29810] ppid=29808 vsize=4616 CPUtime=0.69
/proc/29810/stat : 29810 (precosat) R 29808 29810 29372 0 -1 4194304 1118 0 0 0 69 0 0 0 22 0 1 0 222874532 4726784 1041 1992294400 134512640 135151029 4294956240 18446744073709551615 134542795 0 0 4096 17442 0 0 0 17 1 0 0
/proc/29810/statm: 1154 1041 79 155 0 997 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4616

[startup+1.502 s]
/proc/loadavg: 0.88 0.97 0.99 2/65 29811
/proc/meminfo: memFree=1588440/2055920 swapFree=4164048/4192956
[pid=29810] ppid=29808 vsize=4616 CPUtime=1.49
/proc/29810/stat : 29810 (precosat) R 29808 29810 29372 0 -1 4194304 1118 0 0 0 149 0 0 0 25 0 1 0 222874532 4726784 1041 1992294400 134512640 135151029 4294956240 18446744073709551615 134554777 0 0 4096 17442 0 0 0 17 1 0 0
/proc/29810/statm: 1154 1041 79 155 0 997 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4616

Solver just ended. Dumping a history of the last processes samples

[startup+1.90103 s]
/proc/loadavg: 0.88 0.97 0.99 2/65 29811
/proc/meminfo: memFree=1588440/2055920 swapFree=4164048/4192956
[pid=29810] ppid=29808 vsize=4616 CPUtime=1.89
/proc/29810/stat : 29810 (precosat) R 29808 29810 29372 0 -1 4194304 1118 0 0 0 189 0 0 0 25 0 1 0 222874532 4726784 1041 1992294400 134512640 135151029 4294956240 18446744073709551615 134554774 0 0 4096 17442 0 0 0 17 1 0 0
/proc/29810/statm: 1154 1041 79 155 0 997 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 4616

[startup+2.30107 s]
/proc/loadavg: 0.88 0.97 0.99 2/65 29811
/proc/meminfo: memFree=1588056/2055920 swapFree=4164048/4192956
[pid=29810] ppid=29808 vsize=5188 CPUtime=2.29
/proc/29810/stat : 29810 (precosat) R 29808 29810 29372 0 -1 4194304 1266 0 0 0 229 0 0 0 25 0 1 0 222874532 5312512 1189 1992294400 134512640 135151029 4294956240 18446744073709551615 134555216 0 0 4096 17442 0 0 0 17 1 0 0
/proc/29810/statm: 1297 1189 79 155 0 1140 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 5188

[startup+2.40108 s]
/proc/loadavg: 0.88 0.97 0.99 2/65 29811
/proc/meminfo: memFree=1588056/2055920 swapFree=4164048/4192956
[pid=29810] ppid=29808 vsize=5452 CPUtime=2.39
/proc/29810/stat : 29810 (precosat) R 29808 29810 29372 0 -1 4194304 1334 0 0 0 239 0 0 0 25 0 1 0 222874532 5582848 1257 1992294400 134512640 135151029 4294956240 18446744073709551615 134555037 0 0 4096 17442 0 0 0 17 1 0 0
/proc/29810/statm: 1363 1257 79 155 0 1206 0
Current children cumulated CPU time (s) 2.39
Current children cumulated vsize (KiB) 5452

Child status: 20
Real time (s): 2.48525
CPU time (s): 2.48362
CPU user time (s): 2.47662
CPU system time (s): 0.006998
CPU usage (%): 99.9346
Max. virtual memory (cumulated for all children) (KiB): 5452

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.47662
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1383
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 7

runsolver used 0.005999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node50 at 2009-05-10 11:41:05
IDJOB=1784498
IDBENCH=71626
IDSOLVER=607
FILE ID=node50/1784498-1241948465
PBS_JOBID= 9265044
Free space on /tmp= 66368 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n5_i6_pp_ci_ce.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1784498-1241948465/watcher-1784498-1241948465 -o /tmp/evaluation-result-1784498-1241948465/solver-1784498-1241948465 -C 5000 -W 6000 -M 1800  HOME/precosat HOME/instance-1784498-1241948465.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 2cb95a73fc66a1c6328b2127a33b0a14
RANDOM SEED=152990525

node50.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.216
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.216
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1592768 kB
Buffers:         53772 kB
Cached:         337420 kB
SwapCached:      23676 kB
Active:         250524 kB
Inactive:       166300 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1592768 kB
SwapTotal:     4192956 kB
SwapFree:      4164048 kB
Dirty:            1612 kB
Writeback:           0 kB
Mapped:          13796 kB
Slab:            32268 kB
Committed_AS:   675812 kB
PageTables:       1448 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66368 MiB
End job on node50 at 2009-05-10 11:41:07